2022 (1) 3
https://doi.org/10.15407/polymerj.44.01.041
INVESTIGATION OF BIODEGRADATION AND PROPERTIES
OF POLYURETHANE FOAM COMPOSITE MATERIALS WITH
LYSOZYME IN VITRO
T.V. VISLOHUZOVA,
Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,
e-mail: rudenchyk@gmail.com
ORCID: 0000-0002-4071-4329
R.A. ROZHNOVA,
Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,
e-mail: rozhnovarita@gmail.com
ORCID: 0000-0003-3284-3435
N.A. GALATENKO,
Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,
e-mail: politoks@merlin.net.ua
ORCID: 0000-0002-5961-5750
L.F. NARAZHAYKO,
Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine,
e-mail: politoks@merlin.net.ua
ORCID: 0000-0001-7031-9998
Polym. J., 2022, 44, no. 1: 41-52.
Section: Structure and properties.
Language: English.
Abstract:
The study of biodegradation ability of polyurethane foams composite materials with lysozyme under the influence of saline solution for 2 weeks, 1, 3 and 6 months by IR spectroscopy, DSC, TGA was conducted. According to the results of IR spectroscopy under the influence of model medium there are processes of biodegradation, which are confirmed by a decrease in the intensity of the absorption band νС=О. Along with biodegradation there is a redistribution of hydrogen bonds of NH and CO groups of polymer matrix. According to DSC after incubation in saline solution there is an increase in Tg and ΔCp at the glass-transition (for polyurethane foams and composites with lysozyme in the amount of 5 wt. %), an increase in Tg and decrease in ΔCp (for composites with lysozyme in the amount of 1 and 3 wt. %), which indicates the redistribution of hydrogen bonds under the influence of saline solution and due to lysozyme release. It was found that after incubation in saline solution there is an increase in T0 and Tmax for both polyurethane foams and composite materials with lysozyme by the method of TGA. Thus, composites with lysozyme in vitro are heat-resistant materials. According to the study results of the dynamics of lysozyme release composites are capable to the prolonged release of enzyme for 5 days, the amount of which varies depending on the lysozyme content (43.85-61.97 % of the total amount of the introduced drug) and is sufficient for the manifestation of antimicrobial activity. The tissue culture method has established the biocompatibility of investigated materials. For polyurethane foam composite materials with lysozyme more active growth of fibroblastic elements than in the control and polyurethane foam and slowing down the process of cell degeneration was observed. The obtained results indicate that polyurethane foam composite materials with lysozyme are promising materials that due to the presence of the enzyme will have antimicrobial action and can be used in medical practice as polymer composites for the treatment of wounds and burns.
Keywords: polyurethane foam, composite material, lysozyme, saline solution, biodegradation.
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